Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

McAlester, McAlester Regional Airport (KMLC)

Lat: 34.88°NLon: 95.78°WElev: 768ft.

Partly Cloudy

98°F

37°C

Humidity 34%
Wind Speed Vrbl 5 mph
Barometer 29.88 in (1010.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 4 Sep 4:53 pm CDT
Extended Forecast for

Longtown OK

Heat Advisory until September 4, 07:00pm
Heat Advisory September 5, 12:00pm until September 5, 07:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory until September 4, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 79. South wind around 5 mph becoming calm  in the evening.

    Low: 79 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 97. Heat index values as high as 109. Calm wind.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 80. Calm wind.

    Low: 80 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 97. Calm wind.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 80. Calm wind.

    Low: 80 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 98. Calm wind becoming southeast around 5 mph.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 80. Southeast wind around 5 mph.

    Low: 80 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 96. Heat index values as high as 105. South wind around 5 mph.
Tonight
Clear, with a low around 79. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 97. Heat index values as high as 109. Calm wind.
Saturday Night
Mostly clear, with a low around 80. Calm wind.
Sunday
Sunny, with a high near 97. Calm wind.
Sunday Night
Mostly clear, with a low around 80. Calm wind.
Labor Day
Sunny, with a high near 98. Calm wind becoming southeast around 5 mph.
Monday Night
Mostly clear, with a low around 80. Southeast wind around 5 mph.
Tuesday
Sunny, with a high near 98. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 80. South wind around 5 mph.
Wednesday
Sunny, with a high near 97. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 79. South wind around 5 mph.
Thursday
Sunny, with a high near 96. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 78. South wind around 5 mph.
Friday
Sunny, with a high near 95.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Longtown OK
 35.25°N 95.52°W
4:50 pm CDT Sep 4, 2026
5pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database